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Lilit [14]
3 years ago
14

Solve 3x+4y=175x+4y=27​

Mathematics
2 answers:
Marta_Voda [28]3 years ago
6 0

Answer:

(5x+4y)-(3x+4y)=27-17

2x=10

x=10÷2

=5

Marianna [84]3 years ago
5 0

Answer:

x = 5, y = 1/2

Step-by-step explanation:

-3x - 4y = -17   Use the elimination method by adding the 2 equations together

5x+4y=27​

2x = 10   ===> x = 5

3(5) + 4y = 17,

4y = 2    ===> y = 1/2

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DerKrebs [107]

Answer:

1 Shirt and 185cm remaining cloth

Step-by-step explanation:

2m and 15cm = 215cm

40m = 400cm

400/215=1.860465116

A shirt cant be in decimal so we remove the decimals, and take the as the answer. For the decimals, they are the remaining cloth.. to calculate the amount of remaining cloth we do:

1.860465116-1

=860465116

215*860465116=185cm

5 0
2 years ago
I would like to know what 0.5-0.125q=(q-1)/4 equals out to.
Scrat [10]

Answer:

q = 2

Step-by-step explanation:

0.5-0.125q=(q-1)/4

At first, we have to multiply both the sides by 4.

4 × (0.5 - 0.125q) = q - 1

or, 2 - 0.5q = q - 1

now, we change the side by taking constant into the right side and the number into the left side.

2 + 1 = q + 0.5q

or, 3 = q (1 + 0.5)

or, 3 = 1.5 q

or, 1.5 q = 3

or, \frac{1.5q}{1.5} = (3 ÷ 1.5) [Dividing both the sides by 1.5]

or, q = 2

Therefore, q = 2

8 0
3 years ago
you depsoit the same amount of money in a bank account each month. you deposit a total of $780 in 1 year. How many months does i
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Answer:

35 months

Step-by-step explanation:

devide 780 by 12 because of the 12 months in a year which is 65 then you divide 2275 by 65 which will give you 35 which means that 35 is the number of months.

3 0
2 years ago
How do you solve 38.7×10 to the fourth power
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ndex Notation and Powers of 10

10 to the Power 2

The exponent (or index or power) of a number says

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102 means 10 × 10 = 100

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Example: 103 = 10 × 10 × 10 = 1,000

In words: 103 could be called "10 to the third power", "10 to the power 3" or simply "10 cubed"

Example: 104 = 10 × 10 × 10 × 10 = 10,000

In words: 104 could be called "10 to the fourth power", "10 to the power 4" or "10 to the 4"

8 0
3 years ago
Express each rate as a unit rate $46 for 5 toys
alukav5142 [94]
You have to divide 46 by 5. The anwser would be $9.20 for 1 toy .
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